3UMD

Structure of pB intermediate of Photoactive yellow protein (PYP) at pH 4.

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0006355	biological_process	regulation of DNA-templated transcription
A	0007602	biological_process	phototransduction
A	0009881	molecular_function	photoreceptor activity
A	0042802	molecular_function	identical protein binding

Functional Information from PDB Data

site_id	AC1
Number of Residues	10
Details	BINDING SITE FOR RESIDUE HC4 A 126

Chain	Residue
A	THR50
A	HOH242
A	ARG52
A	VAL66
A	ALA67
A	CYS69
A	THR70
A	PHE96
A	TYR98
A	MET100

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Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	1
Details	MOD_RES: S-(4-hydroxycinnamyl)cysteine => ECO:0000269|PubMed:7981196

Chain	Residue	Details
A	CYS69

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